RDF Schema Instance Example

• Is represented by the following RDF instance,

<rdf:RDF xml:lang="en"
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">

  <!-- Note: this RDF schema would typically be used in RDF instance data 
  by referencing it with an XML namespace declaration, for example
  xmlns:xyz="http://www.w3.org/2000/03/example/vehicles#".  This allows
  us to use abbreviations such as xyz:MotorVehicle to refer
  unambiguously to the RDF class 'MotorVehicle'. -->

  <rdf:Description ID="MotorVehicle">
    <rdf:type resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf
        rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
  </rdf:Description>

  <rdf:Description ID="PassengerVehicle">
    <rdf:type resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf rdf:resource="#MotorVehicle"/>
  </rdf:Description>

  <rdf:Description ID="Truck">
    <rdf:type resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf rdf:resource="#MotorVehicle"/>
  </rdf:Description>

  <rdf:Description ID="Van">
    <rdf:type resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf rdf:resource="#MotorVehicle"/>
  </rdf:Description>

  <rdf:Description ID="MiniVan">
    <rdf:type resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
    <rdfs:subClassOf rdf:resource="#Van"/>
    <rdfs:subClassOf rdf:resource="#PassengerVehicle"/>
  </rdf:Description>

</rdf:RDF>